The purpose of the present invention is to secure ample light distribution and perform good observation during both normal observation and close observation. The endoscope is provided with an observation optical system (1) for drawing close to a subject and performing magnified observation, and multiple illumination optical systems (2) for irradiating illumination light on the subject. When the maximum brightness in the observation field angle during close observation, in which the distance between the tip surface of the inserted section and the subject of 1.5 mm - 2.5 mm, is ITM and the central brightness is ITC and the central brightness during normal observation, in which the distance between the tip surface of the inserted section and the subject is 50 mm, is IWC and the brightness at a position that is 80% of the maximum angle of view is IWS, the endoscope satisfies the following conditions.0.3 < ITC/ITM < 0.45 (1)0.15 < IWS/IWC < 0.25 (2)0.3 < fLfT / ϕLIH < 0.6 (3)wherein, fL is the focal length of the entire illumination optical system, fT is the focal length of the entire observation optical system during maximum magnification, ϕL is the outer diameter of the lens of the illumination optical system closest to the object, and IH is the maximum image height of the observation optical system.Lobjectif de la présente invention consiste à assurer la distribution de lumière ample et à observer de manière satisfaisante pendant lobservation normale et lobservation étroite. Lendoscope est doté dun système (1) optique dobservation destiné à dessiner près dun sujet et à examiner sous loupe, et des systèmes (2) optiques déclairage multiples destinés à exposer le sujet à la lumière déclairage. Lorsque la luminosité maximum dans langle de champ dobservation pendant lobservation étroite, dans laquelle la distance entre la surface de tête de la section insérée et lobjet comprise entre 1,5 mm et 2,5 mm, est ITM et que la luminosité centrale est ITC et la luminosité centrale
